2190309450772 has 48 divisors (see below), whose sum is σ = 3930209640000. Its totient is φ = 1067840573184.

The previous prime is 2190309450739. The next prime is 2190309450773. The reversal of 2190309450772 is 2770549030912.

It is a happy number.

It is a super-2 number, since 2×2190309450772² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190309450773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7224583 + ... + 7521649.

It is an arithmetic number, because the mean of its divisors is an integer number (81879367500).

Almost surely, 2^{2190309450772} is an apocalyptic number.

It is an amenable number.

2190309450772 is a deficient number, since it is larger than the sum of its proper divisors (1739900189228).

2190309450772 is a wasteful number, since it uses less digits than its factorization.

2190309450772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297448 (or 297446 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 2190309450772 in words is "two trillion, one hundred ninety billion, three hundred nine million, four hundred fifty thousand, seven hundred seventy-two".